scholarly journals The effects of arbuscular mycorrhizal fungi and root interaction on the competition between Trifolium repens and Lolium perenne

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e4183 ◽  
Author(s):  
Haiyan Ren ◽  
Tao Gao ◽  
Jian Hu ◽  
Gaowen Yang
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Lolium Perenne ◽  
Trifolium Repens ◽  
Aboveground Biomass ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Belowground Biomass ◽  
Aboveground And Belowground Biomass ◽  
Positive Effect ◽  
Amf Inoculation

Understanding the factors that alter competitive interactions and coexistence between plants is a key issue in ecological research. A pot experiment was conducted to test the effects of root interaction and arbuscular mycorrhizal fungi (AMF) inoculation on the interspecies competition between Trifolium repens and Lolium perenne under different proportions of mixed sowing by the combination treatment of two levels of AMF inoculation (inoculation and non-inoculation) and two levels of root interaction (root interaction and non-root interaction). Overall, the aboveground and belowground biomass of T. repens and L. perenne were not altered by AMF inoculation across planting ratios, probably because the fertile soil reduced the positive effect of AMF on plant growth. Both inter- and intraspecies root interaction significantly decreased the aboveground biomass of T. repens, but tended to increase the aboveground biomass of L. perenne across planting ratios, and thus peaked at the 4:4 polyculture. These results showed that T. repens competed poorly with L. perenne because of inter and intraspecies root interaction. Our results indicate that interspecies root interaction regulates the competitive ability of grass L. perenne and legume T. repens in mixtures and further makes great contribution for overyielding. Furthermore, AMF may not be involved in plant–plant interaction in fertile condition.

scholarly journals Effect of Arbuscular Mycorrhizal Fungi on Chemical Constituents in Cotton/Alfalfa Mixed Culture

2017 ◽  
Vol 63 (2) ◽  
pp. 67-73
Author(s):  
Mazen Ibrahim
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mixed Culture ◽  
Mycorrhizal Fungi ◽  
Dry Matter ◽  
Glomus Intraradices ◽  
Chemical Constituents ◽  
Arbuscular Mycorrhizal ◽  
Matter Production ◽  
Positive Effect ◽  
Amf Inoculation

Abstract A pot experiment was conducted to study the extent of changes occurring in the nutrients, chlorophyll and protein of plants grown in cotton/alfalfa mixed culture as affected by inoculation with indigenous arbuscular mycorrhizal fungi (AMF). The experiment consisted of mycorrhizal treatments (with and without AMF inoculation) and three planting patterns (cotton monoculture, alfalfa monoculture, cotton/alfalfa mixed culture). Arbuscular mycorrhizal (AM) inoculum previously isolated from a rhizospheric soil of cotton, was a mixture of Glomus intraradices, G. viscosum, and G. mosseae. Results showed that total chlorophyll and protein concentrations, and nutrients content were higher in AM cotton plants compared with the non-AM control. Mixed culture had a positive effect on all the above parameters in cotton shoot. The highest values were noted in AM plants in the mixed culture. Improved chemicals and biochemical constituents in cotton led to an increase in dry matter production. The highest dry matter was observed in the AM mixed culture, and was significantly higher by 1.4 times than that of non-AM monoculture.

scholarly journals Penekanan Perkembangan Penyakit Bercak Ungu pada Bawang Merah oleh Cendawan Mikoriza Arbuskula

2017 ◽  
Vol 12 (5) ◽  
pp. 159
Author(s):  
Marlina Puspita Sari ◽  
Bambang Hadisutrisno ◽  
Suryanti Suryanti
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Plant Height ◽  
Mycorrhizal Fungi ◽  
Biocontrol Agent ◽  
Arbuscular Mycorrhizal ◽  
Higher Plant ◽  
Fungicide Treatment ◽  
Alternaria Sp ◽  
Number Of Leaves ◽  
Amf Inoculation

Arbuscular mycorrhizal fungi (AMF) is known to improve the growth of shallot (Allium cepa var. aggregatum) and strengthen the resistance of plants toward disease infection.  This research aimed to find out the roles of AMF in suppressing the development of purple blotch disease caused by  Alternaria sp. on shallot in Caturtunggal, Sleman, Yogyakarta.  Inoculation of AMF either on fertilization of N, P, K or without fertilization treatment resulted on higher plant height and number of leaves compared to those without AMF inoculation. The plant inoculated with AMF had lower purple blotch disease intensity and disease progression than control and fungicide treatment. The result showed that AMF, in addition to act as the bio-fertilizer, is a potential to be a biocontrol agent.

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